This is just a quick question. I havent been able to find any recommendations from Google searching.

What is the maximum recommended weight for front mounting rack hardware?

EDIT:

I have a Hammond 1459 wallmount rack. It is only punched at the front for mounting (I don't know why they didn't punch the back). The depth of the rack is 16.4". I am looking to mount a 2U NAS/Server in the rack (weight is 20 lbs).

Is it sufficient to mount this front only?

If not, I have some follow-up questions:

What is the best way to punch proper EIA holes in the rear of the rack?

Where can I find such short depth rail kits? (I've looked quite a bit)

I disagree. For example, Cisco network equipment around here is typically mounted on two-post telco racks. The difference is that the switches are attached along the entire vertical length of the device, not just with a small pair of rack ears. Also, the racks are typically bolted into the floor.
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larsksNov 24 '10 at 17:09